DE102020114911A1 - Furniture component with a furniture fitting and a motor for the movable connection of two furniture parts - Google Patents

Abstract

Furniture component (1) with a furniture fitting (2) with a guide profile (3) and a roller unit (4) with a roller (5) for the movable connection of two furniture parts (10, 11, 12) and with an electric motor (6). The first furniture part (10) comprises the guide profile (3) and the second furniture part (11) comprises the roller unit (4) and the motor (6) to enable motor-assisted movement of the second furniture part (11) relative to the first furniture part (10). to generate between at least two positions (7, 8). In a first position (7), the second furniture part (11) separates a subspace (9) more than in the second position (8). The motor (6) is designed as an electric brushless motor with a rotor (13) with magnetic elements (14) and a stator (15) arranged in the rotor (13) with coils (16) that can be energized. A rotation axis (13a) of the rotor (13) runs through the stator (15) and a running surface (5a) of the roller (5) of the roller unit (4) is formed on the rotor (13).

Description

The present invention relates to a furniture component with a furniture fitting and an electric motor for the movable connection of two furniture parts and in particular a furniture component with at least one movable sliding sash.

A wide variety of furniture components have become known in the prior art, in which a drive unit moves a sliding sash. For example, the EP 2 501 885 B1 a drive unit for a movable sliding sash, the drive unit being attachable to the sliding sash and having a drive motor and a coupled gear, the output member of which is non-rotatably connected to at least one roller, the roller being insertable into a stationary guide rail of the sliding sash. The transmission includes meshing wheels which form a chain of wheels. This known drive unit works reliably in principle. The disadvantage, however, is the increased space requirement, since a gear is arranged downstream of the electric motor in order to reduce the high speed to a speed that is reasonable in the furniture area for opening and closing.

Another disadvantage in such designs is usually a relatively unpleasant noise, which is generated by the high speed of the electric motor. It is possible to install the drive unit concealed in a sliding sash, but this places even higher demands on the quality and accuracy of fit of the components used, so that the overall construction is even more complex. The noise generated can only be reduced by using relatively complex insulation or expensive components. Overall, therefore, such a furniture drive is complex and therefore expensive due to the many different components.

It is therefore the object of the present invention to provide a furniture component with a furniture fitting and with an electric motor for the movable connection of two furniture parts, which requires less installation space and in particular a smaller number of components and in particular also generates less disturbing noises.

This object is achieved by a furniture component with a furniture fitting for the movable connection of two furniture parts with the features of claim 1. Preferred developments of the invention are the subject of the subclaims. Further advantages and features of the present invention emerge from the general description and the description of the exemplary embodiments.

A furniture component according to the invention comprises at least one furniture fitting with at least one guide profile and at least one roller unit with at least one roller for movably connecting two furniture parts and at least one electric motor. The first furniture part includes the guide profile. The second furniture part comprises the roller unit and the motor in order to generate a motor-assisted movement of the second furniture part relative to the first furniture part at least in sections between at least two positions. In a first position of the two positions, the second furniture part separates a partial space more than in the second position. The motor is designed as an electric brushless motor with a rotor with magnetic elements and a stator arranged in the rotor with coils that can be energized. In particular, the motor is designed to be flat. An axis of rotation of the rotor runs through the stator and a running surface of the running roller of the running roller unit is formed on the rotor.

The furniture component according to the invention has many advantages. A significant advantage of the furniture component according to the invention is the simple structure and the small footprint. The motor can be made very flat due to the construction as an electric brushless motor, which is designed as an external rotor. As a result, only a small amount of space is required for the motor. Because the stator is centrally located and the rotor surrounds the stator, the motor generates a significantly higher torque than internal rotors, since the radius and consequently the lever arm of the force generated by the motor is larger. Due to the design, a gear connected downstream of the motor can usually be dispensed with. Overall, the space requirement is small. The noise development is also lower.

A considerable advantage of a flat design is that it is also possible to accommodate the roller unit with the motor as a whole in thin-walled furniture parts.

Another significant advantage of an external rotor is that it is driven directly from the external rotor. There is no need to redirect the rotary movement of the drive from a central motor axis to the outside. This enables a very flat and therefore space-saving design.

The term “flat” means in particular that the motor has an essentially disk-shaped design. Preferably, “flat” means that a ratio of a diameter of the motor to an axial width of the motor is greater than 2: 1 and in particular greater than 3: 1. The ratio can reach and exceed values of greater than 4: 1 or 5: 1. This creates a very flat engine.

The first position of the two positions is in particular a more closed position in which the second furniture part separates or covers a subspace of the furniture component or the building space more than in the second position, which is a more open position. The first position can in particular be a closed position and the second position can in particular be an at least partially or completely open position or open position.

The subspace can be, for example, the storage space of a cupboard or another piece of furniture. However, it is also possible for a certain part of a living space to be more or less separated from another part of the living space (room divider) by moving the second furniture part from the first position to the second position.

In preferred developments, the second furniture part comprises a door leaf or is designed as such. It is possible that the second furniture part is designed as a sliding door unit.

The first furniture part is preferably designed as a cabinet component and the second furniture part in particular forms a sliding door and / or a folding door. The first furniture part can in particular be designed as a cabinet or comprise such a cabinet. It is then possible for the first furniture part or the entire furniture component to be designed as an upper or lower cabinet or chest of drawers or the like. It is also possible for the furniture component to include a cabinet and possibly further components or parts.

The second furniture part or the door leaf preferably has considerably larger or large-area side surfaces and considerably smaller or narrow-area end faces. In particular, the axis of rotation of the motor is arranged transversely and preferably orthogonally to at least one of the side surfaces.

A maximum dimension (in particular depth or height) of a side surface of the second furniture part is particularly preferably (very much) greater than a thickness of the door leaf or of the second furniture part. In particular, a ratio of a maximum dimension (maximum height) of a side surface of the door leaf to a thickness of the door leaf is greater than 5 or 10 or 20 or even considerably more. The thickness of the door leaf is preferably <50 mm and preferably less than 35 mm or 30 mm. The thickness of the door leaf can also be between 12 mm and 24 mm.

An axial width of the motor is particularly preferably less than twice and particularly preferably 1.5 times the wall thickness of the door leaf. In particularly preferred configurations, an axial width of the motor and / or a roller unit is smaller than the wall thickness of the door leaf.

Particularly preferably, at least one motor and in particular at least one roller unit as a whole are accommodated at least predominantly or completely in a receiving space in the second furniture part and in particular the door leaf. It is preferred that (only) a section of a roller protrudes outward from the receiving space. The outwardly protruding section of the roller runs in particular on the guide profile.

The receiving space on the second furniture part can in particular be designed as a recess. The roller unit is preferably at least partially integrated within the second furniture part.

In all configurations, the furniture component can also be designed as a chest of drawers or the like. A furniture component can be used in particular in the living area, sleeping area, in the kitchen or in other rooms or in an office.

At least one roller unit is preferably received and / or fastened to the lower end of the second furniture part and in particular of the door leaf. The roller unit is particularly preferably accommodated in the interior of the door leaf. This enables a visually appealing design in which the drive of the second furniture part can be almost completely or completely covered.

The term “second furniture part” can preferably be concretized throughout this application and thus replaced by the term “door leaf” and particularly preferably by the term “sliding door”.

The second furniture part preferably comprises the roller unit on at least 3, 4 or 5 sides. Particularly preferably, the door leaf or the second furniture part encompasses or surrounds the roller unit on the sides and towards the front and up or down, depending on where the roller unit is attached to the door leaf below or above. The roller unit preferably also becomes the interior space of the furniture component covered so that the roller unit is practically invisible during normal operation.

In addition to attaching the roller unit to the lower end of the second furniture part, it is also possible to fasten a roller unit to the upper end of the second furniture part and in particular the door leaf.

In all cases, motorized roller units can only be provided below, only above, or above and below. In particular, it is also possible for only a single roller unit to be used with a motor. In addition to a roller unit with a motor, further roller units that do not have a motor are preferably used. Such roller units are referred to as "motorless roller units" and can be designed more simply and constructed differently.

Roller units which are arranged at the upper end of a door leaf can run on or on a guide profile (or guide profiles) which are attached to a top panel or a body of the furniture component or can also be formed directly on it. In the case of roller units of this type, the door leaf or the second furniture part is connected to the second furniture part in particular via a U- or L-shaped bracket device.

If a cabinet is provided with two sliding doors, in which the sliding doors can be moved past each other, the bracket device of the outer door leaf overruns the inner door leaf so that the roller unit can be supported on the body of the furniture component and can move along the guide profile.

In all configurations of the brushless electric motor, it is preferred that at least 5 coils are arranged on the stator. At least 3 phases are particularly preferably arranged on a stator. It is also possible and preferred for at least 5 and preferably at least 10 and in particular also more than 15 coils to be arranged in the stator. A construction is also possible in which more than 6, 8, 10, 12, 16 or more than 20 coils are used around the circumference. Particularly preferably, the number of magnet elements, in particular designed as permanent magnets, on the rotor is just as large as the number of coils used or corresponds to an integral multiple (or vice versa).

In particular, at least 3 phases (current phases) are arranged on the stator and are preferably connected via separate cables. More phases allow a smoother run.

A maximum distance between two opposing permanent magnets or magnetic elements is preferably (considerably) greater than a width of a magnetic element in the axial direction or in the direction of the axis of rotation. In particular, the distance between at least 2 opposing permanent magnets is at least three times as large as a width of a magnetic element in the axial direction or in the direction of the axis of rotation.

Preferably at least one of the permanent magnets includes a rare earth metal.

In advantageous refinements, at least one sensor for detecting or estimating at least one position of the second furniture part is included. The sensor is designed in particular as a digital and / or analog sensor. For example, it is possible for an incremental rotary encoder to be integrated into the motor as a sensor.

It is also possible that a friction wheel as a sensor rotates with the motor or else, for example, directly detects a movement of the second furniture part. The use of ultrasonic sensors or the use of radar sensors is also possible.

The position of the second furniture part can be estimated, for example, by measuring the transit time. An estimate can have a certain difference from the actual position of the motor and / or of the second furniture part, for example due to slip. In preferred developments, at least one end position sensor is included. Such an end position sensor can mechanically include an end position via, for example, a mechanical, optical, capacitive or inductive switch. It is also possible for an end position to be detected, for example, via the current consumption of the motor.

Rotary encoders, ammeters, tachometers and also sensors for detecting the rotor position of the motor and other sensors known from the prior art can be used as sensors.

A sensorless system or a system in which, for example, the at least one coil (or several coils) is (also at least temporarily) used for measuring purposes is also possible. For example, at a standstill or while moving.

A control device is preferably included in all of the configurations. At least one sensor is preferably coupled to the control device. It is advantageous if the sensor is coupled to the control device and the control device and / or the sensor is designed for this purpose is set up, or are, to avoid a test start-up of the motor in both directions in order to find out the position of the motor and the correct energization of the coils as a result of it. Sensorless systems with, for example, BLDC controls are also possible. With this or in another way, the rotor position can be determined, for example, by determining the back EMF voltage.

In general, it is possible for the roller unit or the motor of the roller unit to be driven only during part of an opening and / or closing movement of the second furniture part. For example, it is possible that only a slight opening or a short movement of the second furniture part is generated with the motor. The user can then bring the second furniture part into the desired position by hand. However, it is particularly preferred that the motor can completely bring about the opening and / or closing movement of the second furniture part. A motor-controlled complete opening and / or closing movement of the second furniture part can then be carried out. For example, the second furniture part can be pre-opened if, for example, the user approaches the furniture component (in a certain way).

At least the electrically driven part of the roller unit is preferably protected by a housing, in particular made of metal or a flame-retardant material, and is preferably at least partially surrounded by it. The motor is preferably operated with direct voltage, the direct voltage being in particular less than and equal to 120 V or less than or equal to 75 V or less than or equal to 60 V.

In particularly preferred configurations, at least one energy store is included. The energy store comprises in particular rechargeable battery cells or capacitors, the storage capacity of which is sufficient for at least one or two complete movements between the first and second positions. In particular, the storage capacity is also sufficient for 3, 4, 5 or 6 complete movements between the first and second positions.

It is particularly preferred to include an energy supply that ensures a wired and / or wireless power supply in at least one position. For example, contact pins or sliding contacts or the like can be provided in a predetermined position and in particular in the closed position, which enable an electrical connection between the energy supply and the energy store. The closed position is particularly useful because it is taken regularly. The contact position can be used to determine the position.

A rechargeable battery or a non-rechargeable battery or a corresponding capacitor or an energy store on a chemical or physical basis can be used as the energy store.

A wireless power supply via induction, for example, which can take place in one, two or more positions, is also possible and preferred. Here, too, the closed position offers itself in order to recharge the energy storage device. The detection of a charging current can also serve as a sensor for detecting a specific position. If contacting and charging is only possible at one location or in a limited area, a defined position of the second furniture unit can be detected. All other positions can be estimated from the running times and rotational speeds of the motor.

At least one wired and / or wireless data interface is preferably included. The data interface is used in particular for data exchange and for controlling the furniture component. A wireless data interface can take place, for example, via WLAN, Bluetooth, ZigBee, ZWAVE and, for example, on the frequencies 433 MHz or 868 MHz or other suitable frequencies. KNX or IP can also be used as protocols.

At least one control device is preferably assigned or included. In particular, a control device is integrated into the roller unit.

The control device is preferably connectable or connected to a network and, in particular, controllable via the network. For example, control can take place via a “smart home” system or from a computer or smartphone or by voice or the like via the network. Control via the Internet is also conceivable. Acoustic sensors and / or touch sensors and / or radar sensors are preferably included. It is also possible for integrated or separate gesture or radar sensors to be evaluated in order to control the furniture component. It is also possible to use buttons or touch-sensitive or non-contact switches on the furniture component and / or remotely therefrom for control purposes.

Furthermore, further sensors or detectors can be included or assigned. In particular, a crash sensor can be provided that prevents a collision with other objects or Bodies captured. In simple cases, monitoring the motor current can be sufficient. Such sensors can provide personal security and anti-trap protection for people and / or objects. In this way, injuries to people or pets and damage to objects can be largely avoided.

It is also possible that an initial movement is stimulated by the user and the second furniture part then moves independently. In this way, the roller unit can also react to an impact. With this, the user could bump the door or the like and the rest of the closing / opening could take place independently.

It is also preferred to move the second furniture part with one hand without current, e.g. B. with just a single finger. Above all, this is also made possible by the fact that a gear can be dispensed with and thus the considerable inhibiting moments of a gear do not have to be overcome. If necessary, an overrunning clutch can also be integrated to enable even easier running. Preferably no overrunning clutch is necessary.

In preferred developments, the door leaf has at least one core and a receiving space formed on it. The core is then preferably (detachably) connected to the roller unit. It is also possible for the door leaf to comprise at least 2 cores and a receiving space in between, the two cores being connected to one another and the roller unit being received in or on the receiving space. In both cases it is possible that the roller unit is mounted practically invisibly on the door leaf and cannot be seen during normal operation.

In all of the configurations it is possible for at least two motors to be included, which in particular are synchronized with one another. It is also possible for a roller unit to have two or more motors. The roller unit then has, in particular, two (or more) rollers, one of which is assigned to a motor or is formed by the rotor of the respective motor.

It is possible that a belt is tensioned over the rollers, which belt is then in contact with the guide profile of the furniture fitting in order to move the second furniture part relative to the first furniture part. It is also possible here for two rollers to be provided, an electric motor being formed on only one roller. A belt can be stretched over both rollers. However, it is particularly preferred that no belt is used.

In all of the configurations, it is particularly preferred that at least one third furniture part is included, the second and third furniture parts in particular being arranged in a planar or coplanar manner. It is also possible that a 4th, 5th and 6th (movable) furniture part are included. The furniture component can then comprise several door leaves.

A third furniture part is preferably aligned planar with the second furniture part in the closed position and can be moved into a coplanar position parallel to the second furniture part by an adjustment mechanism when moving into the open position. The adjustment mechanism can be designed, for example, as a link guide or the like in order to achieve a corresponding adjustment of the third furniture part.

In all of the configurations it is also possible for the second furniture part to be designed as a drawer which can automatically retract and extend on a guide profile of the furniture body of the furniture component.

It is also possible for the second furniture part to be designed as a room-dividing sliding door. Then the guide profile is fixed in place not only on the first furniture part, but in particular also in the room. For example, the guide profile can be attached to a wall or a ceiling or the floor of the corresponding building room or living room or room.

It is possible that the first furniture part consists practically only or even only of at least one guide profile. This is particularly possible if the second furniture part is designed as a sliding door or a room-dividing sliding door. The guide profile can, for. B. be attached directly to the living room ceiling on which the sliding door is suspended.

In all of the configurations it is preferred that the motor and / or the control device is / are exchangeable.

At least one bearing for supporting the rotor is preferably accommodated on the stator. The bearing is designed in particular as a roller bearing. The bearing is preferably mounted on a central journal of the stator. The rotor is rotatably supported by the bearing and can transfer the forces from the roller via the stator to the first furniture part or a room wall or the like.

The stator particularly preferably has at least one circumferential flange. The circumferential flange of the stator preferably engages around the roller bearing for mounting the rotor. This means that the circumferential flange extends radially further outwards than the roller bearing. The circulating one The flange surrounds the rolling bearing over part of the axial width. Particularly preferably, bobbin holders projecting radially outward and on which the bobbins are received are formed on the circumferential flange. This construction enables immovable coils connected to the stator, while the rotor is supported radially further inward and while the magnet units connected to the rotor radially surround the coils.

The rotor and / or the roller is preferably supported on the roller bearing.

In particular, the composite of rotor and roller is designed in several parts and in particular has at least two different materials.

It is also possible that the stator engages the outer radius of the roller bearing and in particular the ball bearing and that the rotor engages with a pin in the inner radius. Then it is solid on the outside and it rotates on the inside. In the case of radial forces, however, this can lead to a torque on the ball bearing and thus to tilting. The aforementioned construction is therefore preferred, in which an axle journal or fixed pin serves as a bearing and in which the rotor engages the ball bearing on the outside. The above-mentioned circumferential flange grips the ball bearing and takes the bobbins.

The motor can have a slip / overload clutch. This increases the safety of the user (trap protection) or the protection of the motor itself or can be used as a freewheel.

Instead of brushless DC motors, other types of motors and motor variants can also be used. In particular, disc motors or reluctance motors can be used for the drive. Other variants are also possible.

In all cases it is also possible that the furniture part can be operated manually.

Further advantages and features of the present invention emerge from the exemplary embodiments which are explained below with reference to the accompanying figures.

• 1 eine perspektivische Ansicht einer ersten Ausführungsform einer erfindungsgemäßen Möbelkomponente;
• 2 ein vergrößertes geschnittenes Detail von dem oberen Ende der Möbelkomponente nach 1;
• 3 ein geschnittenes vergrößertes Detail vom unteren Ende der Möbelkomponente nach 1;
• 4 einen vergrößerten Querschnitt vom unteren Ende der Türkomponente nach 1 in einer alternativen Ausführungsform;
• 5 einen Querschnitt durch 4;
• 6 verschiedene Schnittdarstellungen der Laufrolleneinheit aus 4;
• 7 eine Explosionsdarstellung der Laufrolleneinheit aus 4;
• 8 eine Seiten- und Vorderansicht der Laufrolleneinheit aus 4;
• 9 eine weitere Ausführungsform einer erfindungsgemäßen Möbelkomponente in einer perspektivischen Darstellung;
• 10-13 verschiedene Ansichten einer Laufrolleneinheit der Möbelkomponente nach 9;
• 14 eine Vorderansicht der Laufrolle der Laufrolleneinheit nach 10;
• 15 eine Draufsicht auf die Laufrolle nach 14;
• 16 und 17 schematische Draufsichten auf eine weitere erfindungsgemäße Möbelkomponente in 2 verschiedenen Stellungen;
• 18 eine schematische Draufsicht auf einen Motor einer Laufrolleneinheit;
• 19 eine schematische Seitenansicht des Motors nach 18;
• 20 eine weitere Möbelkomponente in einer perspektivischen Darstellung;
• 21 ein Schubkasten als erfindungsgemäße Möbelkomponente.

In the figures show:

• 1 a perspective view of a first embodiment of a furniture component according to the invention;
• 2 an enlarged sectioned detail from the top of the furniture component after 1 ;
• 3 after a cut enlarged detail from the lower end of the furniture component 1 ;
• 4th an enlarged cross-section from the lower end of the door component 1 in an alternative embodiment;
• 5 a cross section through 4th ;
• 6th various sectional views of the roller unit 4th ;
• 7th an exploded view of the roller unit 4th ;
• 8th a side and front view of the caster assembly 4th ;
• 9 a further embodiment of a furniture component according to the invention in a perspective view;
• 10-13 different views of a roller unit of the furniture component according to 9 ;
• 14th a front view of the caster of the caster unit according to 10 ;
• 15th a top view of the roller according to 14th ;
• 16 and 17th schematic top views of a further furniture component according to the invention in 2 different positions;
• 18th a schematic plan view of a motor of a roller unit;
• 19th a schematic side view of the engine according to 18th ;
• 20th another furniture component in a perspective view;
• 21 a drawer as a furniture component according to the invention.

With reference to the 1 - 3 is a first embodiment of a furniture component according to the invention 1 explained that here as a closet 100 is executed and has two sliding doors 101 which are arranged here parallel to one another. 1 shows the furniture component 1 in the first position 7th which is a closed position here.

The cabinet is at the top through an upper body part or a top panel 41 closed. The cabinet interior or part of the room moves downwards 9 (compare 5 ) through a lower body part or a sub-shelf 42 limited. The cupboard 100 stands overall on separate feet or on a circumferential foot 44 .

The body of the cabinet 100 forms a first piece of furniture here 10 on which a guide profile 3 or several guide profiles 3 are attached. To the Guide profile3 run the rollers 5 of the roller units 4th .

In the embodiment according to 1 - 3 become the roller units 4th at the upper end of the second or third furniture part 11th , 12th arranged so that the door leaves 18th on the roller units 4th being held.

The side faces 18a the door leaf 18th have a considerably larger area than the end faces 18b the door leaf 18th on.

At the top of the door leaf 18th is on every door leaf 18th at least one with an engine each 6th provided roller unit 4th appropriate. It is possible that a further motorless roller unit equipped without a motor 24 is attached to each door leaf. But it is also possible that the roller units visible here at the upper end 4th each with an engine 6th exhibit.

The cupboard 100 or the furniture component 1 is from the front from the access side 1a accessible from. The activation of the motor-assisted movement of the door leaves 18th takes place via z. B. visible or invisible sensors 46 , the z. B. work on touch or without contact. Gesture control is also possible.

2 shows a cross section at the upper end of the door leaf 18th across the side surface 18a . The second furniture part is in the cross section 11th shown in section. The third piece of furniture 12th is not cut due to the chosen perspective. The third piece of furniture 12th is parallel to the second furniture part 11th aligned and is over the ironing device 21 held parallel. The two motor-driven roller units can be seen 4th each with a motor inside 6th may be provided around the treads 5a of the rollers 5 to drive and thus a movement of the respective furniture parts 11th , 12th to create. By the rotation of the motor 6th the door leaf moves 18th in the desired direction.

3 shows a cross section perpendicular to the side surface 18a a door leaf at the lower end of the furniture component 1 It can be clearly seen here that the lower ends of the door leaf 18th through guided tours 23 be guided.

4th shows an alternative embodiment in which the roller units 4th at the bottom of the door leaf 18th out 1 are housed. Here are the roller units 4th inside the door leaf 18th added, in such a way that only a small portion of the tread 5a the roller 5 the roller unit 4th down from the door leaf 18th protrudes. The tread 5a is written here on the guide profile 3 at the bottom of the furniture component 1 on. In this case, there is no hanging, but standing support for the door leaves 18th achieved. 4th shows a cross section parallel to the outer side surface 18a of the door leaf 18th .

The caster unit 4th includes a housing 17th which in a recording room 19th inside the door leaf 18th is recorded.

The door leaf 18th can also be used as a room divider 60 or room divider sliding door wall. Then is the guide profile 3 for example firmly connected to the floor, the ceiling or a wall of the (living) room. Then the first piece of furniture can 10 completely through the guide profile 3 are formed. The furniture fitting 2 again consists of the guide profile 3 and at least one roller unit 4th such as in 4th you can see.

In the case 17th the roller unit 4th is the engine 6th housed. The motor 6th has a central stator 15th on where the coils 16 are recorded or trained. That means the coils 16 does not turn during operation. The central stator 15th gets outward from the rotor 13th surrounded whose axis of rotation 13a the central axis through the stator 15th is equivalent to. There are permanent magnets on the rotor as magnetic elements 14th added, the number of which is here the number of electrical coils 16 is equivalent to. The rotor 13th has the running surface on its outer circumferential surface 5a the roller 5 on.

This means that the running surface is formed on the outer circumference of the rotor. A gear between the rotor and the running surface 5a the roller 5 is not necessary and not provided.

Furthermore is in the housing 17th an energy store 30th housed several battery cells here 31 includes.

The caster unit 4th is controlled by a control device 25th controlled, which is housed here on a circuit board.

An energy supply 32 at a certain position of the guide profile 3 allowed with a suitable position of the roller unit 4th a current transfer from the power supply 32 to the loading unit 33 . Electricity can be transmitted via a direct electrical contact. It is also possible to transmit the charging current inductively. There can also be busbars or current conductors over the length of the guide profiles so that current is continuously available.

At least one sensor can be used to detect the position 38 be provided. In simple configurations, the sensor can be used as an end position sensor 39 be trained. Such a sensor can also detect the loading position, which is usually an end position. An exact position is then determined there. Other positions can be estimated.

5 shows a cross-section across the views according to FIG 4th , where here is a cross-section through the engine 6th is visible. Overall are in 5 the guide profile (s) 3 and the caster assembly 4th recognizable, which together the furniture fitting 2 form. The guide profile 3 is here on the first piece of furniture 10 attached, but can also be formed directly on it if it is the material of the first furniture part 10 permitted. The caster unit 4th is here in a recording room 19th of the second piece of furniture 11th used.

On the lower cabinet floor 42 the furniture component 1 are guide profiles 3 attached in which two door leaves 18th can be moved here perpendicular to the plane of the sheet. Inside the second piece of furniture 11th is the roller unit 4th housed. The caster unit 4th is almost completely surrounded by the door leaf. The tread only protrudes downwards 5a the roller 5 from the door leaf 18th out and reaches into the guide profile 3 one.

Inside the caster unit 4th is the electric motor 6th with the central stator 15th to see where the electrical coils are 16 are arranged. Radially further out are on the rotor 13th the permanent magnets 14th arranged. On the outer surface of the rotor 13th is the tread 5a educated.

On a central stub axle 15a of the stator 15th is a rolling bearing 45 recorded. Through the roller bearing 45 becomes the rotor 13th rotatably supported and can take the forces from the roller 5 about the stator 15th to the first piece of furniture 10 or discharge a room wall or the like.

On the stator 15th is a circumferential flange 15b formed, which here has a radial wall on the left side with the central stub axle 15a (in one piece) is connected. The surrounding flange 15b of the stator 15th encompasses the rolling bearing 45 for the storage of the rotor 13th . The surrounding flange 15b surrounds the rolling bearing 45 only over part of the axial width. On the circumferential flange 15b are bobbin holders protruding radially outwards 15c formed, on each of which a coil 16 is recorded. The stator 15th has firmly connected and immovable coils 16 on. The rotor 13th is supported radially further inwards, while that with the rotor 13th connected and rotating magnet units 14th radially outside the coils 16 surround.

For example on the circumferential flange 15b of the stator 15th can be a sensor 40 be integrated in the motor to a position of the motor and also the roller 5 with the engine 6th to determine.

The caster 5 is based on the rotor 13th on the roller bearing 45 and thus on the stator 15th away.

The composite of the rotor 13th and roller 5 is designed in several parts here and consists in particular of at least two different materials.

The motor forms a roller as a whole 5 . A particularly compact design is achieved in which the motor 6th and the caster assembly 4th overall inside the door leaf 18th can be included. The width 6b of the motor 6th is smaller than the wall thickness 11a of the door leaf 18th .

In the representation after 4th is located behind the second furniture part 11th the storage space 9 or part of the space through the door leaf 18th is separated. In the representation after 5 is the storage space to the left of the door leaf 18th inside the closet 100 intended.

6th shows various views and sections through the roller unit 4th after 4th , where at the top left you can see an uncut side view with the tread at the bottom 5a out of the case 17th exit. Above right is a sectional view B - B shown, with the holder inside 20th for the stator 15th can be seen. The same is true of the energy store 30th with the three battery cells here 31 pictured. The loading unit 33 connects here down to the control device 25th on. At least one data interface is also located on the circuit board 26th that can connect to a network or the Internet in a wired and, in particular, wireless manner.

Below that, the section A - A is shown on the right and the section D - D to the left. From the board of the control device 25th makes an electrical connection 27 to the engine 6th and the coils 16 . The battery cells 31 are located here above the control device 25th .

Below is in 6th the section C - C shown, in which it can be seen again that is inside the housing 17th here on the right the control device 25th while to the left of it is the electric motor 6th connected, the structure of which has already been explained.

7th shows an exploded view of the roller unit 4th and 8th shows a side view and a front view of the assembled caster unit 4th . The case 17th consists of a carrier 17a and two lids 17b , between them the control device 25th , the loading unit 33 , the energy storage 30th , the electric motor 6th and the electrical connection 27 are included. The pen-like items are spacers 36 and the screws 37 are used for assembly and to maintain a defined distance between the two covers 17b .

9 shows a further embodiment of a furniture component according to the invention 1 that are also used here as a closet 100 is executed and which has a second furniture part 11th and a third piece of furniture 12th each as a door leaf 18th are executed and are laterally adjustable. Here the sliding doors are at least also at the upper end over roller units 4th drivable on the first furniture part 10 (Body) of the furniture component 1 recorded. Here are two roller units each 4th provided on the guide profile 3 of furniture fittings 2 be guided. About ironing facilities 21 become the roller units 4th of the third piece of furniture 12th in parallel.

10 and 11th show perspective views of the roller units 4th , the ironing device 21 can be seen on which a mounting flange 28 for attachment to the door leaf 18th can be seen. In 10 is the engine 6th with the roller 5 partly recognizable.

12th shows a front view and 13th a side view of the caster units 4th out 10 and 11th , where in 12th the tread here curved inwards 5a the roller 5 can be seen. There is also a safety hook 29 visible. In 13th is easy to see that the engine 6th protrudes downwards so that the tread 5 is only freely accessible in a lower section and on a guide profile 3 the door leaf 18th can position in a defined manner.

In 14th and 15th Fig. 13 is a front view and a side view of the caster 5 shown, where in 14th the inwardly curved running surface 5a is easy to see. With such a tread 5a the guide profile is curved outwards and to the contour of the tread 5a customized. An inwardly curved tread 5a and a correspondingly outwardly curved guide profile 3 is also preferred, as is an outwardly curved running surface 5a (compare for example 6th ) and an inwardly curved guide profile 3 is preferred to ensure a secure hold of the roller 5 on the guide profile 3 to guarantee.

16 and 17th show a top view of a further exemplary embodiment of a furniture component according to the invention 1 , which in turn as a closet 100 is executed. In contrast to the previous exemplary embodiments, the two door leaves are 18th or the second furniture part and the third furniture part here in the closed position 7th aligned exactly next to each other. The two door leaves 18th stand with their front sides 18b in front of each other when they are in the closed position 7th condition. There is an adjustment mechanism for each door leaf 22nd provided when a door leaf moves 18th , such as the second piece of furniture 11th from the closed position 7th out to an open position 8th inside ensures that the door leaf 18th is shifted parallel and then coplanar in front of the third furniture part 12th is brought here. This is in the closed position 7th allows a uniform surface and in the open position 8th are the door leaves 18th parallel to each other.

18th shows a plan view of an embodiment of the engine 6th , which is always designed here as an external rotor motor and the one on the stator 15th here a total of 24 electrical coils distributed over the circumference 16 are arranged. Correspondingly are on the rotor 13th 24 permanent magnets distributed around the circumference 14th as magnetic elements around the stator 15th arranged around.

The motor designed as an external rotor motor 6th has a diameter 6a of the rotor 13th on. The motor 6th is designed as an electric brushless motor. Due to the construction, the connection cables 27 or the electrical connection to the stator 15th be performed so that a transmission through sliding contacts can be omitted here if permanent magnets 14th can be used.

The motor 6th and also the caster 5 overall form a flat disk-shaped arrangement, the ratio of the outer diameter 6a of the motor 6th to the axial overall width 6b is greater than 2 or 3 or 4 or 6 or 8 or even greater. The axial width 6b of the motor 6th can be the axial width of the permanent magnets 14b correspond. An outside distance 14a (or also an inner clear distance) of two permanent magnets opposite one another 14th is several times larger than an axial width 14b the permanent magnets 14th or an axial width 6b of the motor 6th .

19th shows a cross section. The ratio of the diameter 6a of the rotor to the axial width 6b of the motor is greater than 4: 1 and can reach and exceed values greater than 5: 1 or 6: 1. This creates a very flat engine. The diameter is through the tread 5a on the roller 5 conditionally a little bigger. The axis of rotation is central 13a drawn.

The motor 6th assigns the central stator 15th on where the electrical coils 16 are arranged. On the rotor 13th are the permanent magnets 14th arranged.

20th shows a further embodiment of a furniture component according to the invention 1 , with the roller unit here as well 4th or the engine 6th inside the movable furniture part 11th is recorded. Only a small part or a small angular segment of the roller 5 stands at one end 18b outwards. The caster unit 4th is with the engine 6th in a recording room 19th of the second piece of furniture 11th recorded.

In all configurations, the side surfaces 18a through a (separate) top layer 18c be covered or directly form one. It is possible that the top layer 18c the recording room 19th covers to the outside, and that only through the top layer 18c a uniform interface is made available. This is preferably the case when the recording room 19th is formed by a recess, which is then by a cover layer 18c is covered. Here in 20th becomes the recording room 19th preferably through two recesses in the two cores 34 , 35 formed so that a separate top layer 18c possible, but not necessary.

The second piece of furniture 11th can here and in all configurations, for example, two cores 34 , 35 include, in each of which a (for example half) recess is formed so that after joining the two cores 34 , 35 a recording room 19th for the roller unit 4th results. The caster unit 4th can before joining the two cores 34 , 35 be introduced. Or it can be the roller unit in all configurations 4th - with the appropriate dimensions - also retrospectively in the recording room 19th be inserted.

It is also possible in all configurations that the second furniture part 11th consists only of a core with a correspondingly large recess that is accessible from the side surface. Then the roller unit can 4th inserted from the side. Then, for example, a decorative layer or the like can be applied so that the roller unit 4th is practically invisible from the side.

It is also possible in all configurations that the second furniture part 11th consists only of a core with a correspondingly large recess that is accessible from the end face. Then the roller unit can 4th can be used from the front. Then, for example, a narrow edge coating or the like can be applied. It is preferred that a thickness 11a of the second piece of furniture 11th is greater than an axial width 6b of the motor 6th .

21 finally shows another embodiment of a furniture component according to the invention 1 which here as a drawer 50 is executed. The second piece of furniture 11th forms here, for example, a side wall of the drawer 50 . In the second piece of furniture 11th is a roller unit 4th recorded on a guide profile 3 of the first piece of furniture 10 running. This enables a motor-controlled retraction and extension of the drawer 50 respectively. In the open position shown here 8th is the storage space 9 of the drawer 50 accessible from above. When the drawer 50 is fully retracted, the storage space becomes 9 towards the front through the front panel 43 covered.

Here, too, includes furniture fittings 2 the guide profile 3 on the first piece of furniture 10 and the caster assembly 4th with the roller 5 on the second furniture part 11th .

In the case of the furniture component according to the invention 1 the engine moves 6th together with the movable second furniture part 11th . The second piece of furniture 11th is especially used as a door leaf 18th formed and can form a sliding door. A control of the movements of the door leaf is sensor-controlled via z. B. a touch or contactless possible. It is also possible to use radar or ultrasonic sensors or other sensors to enable gesture recognition.

List of reference symbols

1

Furniture component

1a

Access page

2

Furniture fittings

3

Guide profile

4th

Caster unit

5

Caster

5a

Tread

6th

engine

6a

diameter

6b

axial width

7th

first position, closed position

8th

second position, open position

9

Partial space, storage space

10

first piece of furniture

11th

second furniture part

11a

Wall thickness

12th

third furniture part

13th

rotor

13a

Axis of rotation

14th

Magnetic element

14a

distance

14b

Width of 14

15th

stator

15a

Stub axle

15b

flange

15c

Bobbin holder

16

Kitchen sink

17th

casing

17a

carrier

17b

lid

18th

Door leaf

18a

Side face

18b

Front side

18c

Top layer

19th

Recording room

20th

holder

21

Ironing device

22nd

Adjustment mechanism

23

guide

24

motorless roller

25th

Control device

26th

Data interface

27

electrical connection

28

Mounting flange

29

Safety hook

30th

Energy storage

31

Battery cell

32

Energy supply

33

Loading unit

34

core

35

core

36

Spacers

37

screw

38

sensor

39

End position sensor

40

sensor

41

Bottom, topsoil

42

Floor, subfloor

43

Front panel

44

foot

45

warehouse

46

Gesture / touch sensor

50

Drawer

60

Room divider

100

Closet, upper cabinet

101

sliding door

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 2501885 B1 [0002]

Claims (40)

Furniture component (1) with a furniture fitting (2) with at least one guide profile (3) and at least one roller unit (4) with at least one roller (5) for the movable connection of two furniture parts (10, 11, 12) and with an electric motor (6 ), wherein the first furniture part (10) comprises the guide profile (3), and wherein the second furniture part (11) comprises the roller unit (4) and the motor (6) to enable a motor-assisted movement of the second furniture part (11) relative to the first furniture part (10) at least in sections between at least two positions (7, 8), wherein in a first position (7) of the two positions (7, 8) the second furniture part (11) separates a subspace (9) more than in the second position (8), characterized in that the motor (6) is an electric brushless motor with a rotor (13) with magnetic elements (14) and a stator (15) arranged in the rotor (13) with energizable coils (16) is trained, and by the stato r (15) an axis of rotation (13a) of the rotor (13) runs, and that a running surface (5a) of the roller (5) of the roller unit (4) is formed on the rotor (13). Furniture component (1) according to the preceding claim, wherein the second furniture part (11) comprises a door leaf (18). Furniture component (1) according to the preceding claim, wherein the first furniture part (10) is designed as a cabinet component (100) and wherein the second furniture part (4) forms a sliding door (101) or folding door. Furniture component (1) according to one of the preceding claims, wherein the second furniture part (11) has a greater wall thickness (11a) than an axial width (6b) of the motor (6). Furniture component (1) according to one of the preceding claims, wherein the second furniture part (11) has large-area side surfaces (18a) and narrow-area end faces (18b) and wherein an axis of rotation (13a) of the motor (6) is arranged transversely to one of the side surfaces (18a) is. Furniture component (1) according to one of the preceding claims, wherein at least one motor (6) is accommodated at least predominantly or completely in a receiving space (19) in the second furniture part (11) and wherein a portion of a roller (5) from the receiving space (19 ) protrudes to the outside. Furniture component (1) according to one of the preceding claims, wherein at least one roller unit (4) is attached to the lower end of the second furniture part (11). Furniture component (1) according to one of the preceding claims, wherein the second furniture part (11) comprises the roller unit (4) on at least three, four or five sides. Furniture component (1) according to the preceding claim, wherein the second furniture part (11) partially comprises the roller unit (4) on a further side. Furniture component (1) according to one of the preceding claims, wherein at least one roller unit (4) is attached to the upper end of the second furniture part (11). Furniture component (1) according to one of the preceding claims, wherein at least one roller unit (4) is connected to the second furniture part (11) via a U- or L-shaped bracket device (21). Furniture component (1) according to one of the preceding claims, wherein at least one motorless roller unit (24) is included. Furniture component (1) according to one of the preceding claims, at least five coils (16) being arranged on the stator (15). Furniture component (1) according to one of the preceding claims, at least three phases being arranged on the stator (15). Furniture component (1) according to one of the preceding claims, wherein a maximum distance (14a) between two opposing magnetic elements (14) is greater than a width (14b) of a magnetic element (14) in the direction of the axis of rotation (13a). Furniture component (1) according to one of the preceding claims, wherein at least one sensor (38) for detecting or estimating at least one position of the second furniture part (11) is included, wherein the sensor (38) is designed in particular as a digital and / or analog sensor. Furniture component (1) according to the preceding claim, wherein at least one end position sensor (39) is included. Furniture component (1) according to one of the two preceding claims, wherein at least one sensor (40) is integrated in the motor (6). Furniture component (1) according to one of the preceding claims, wherein the sensor (38, 39) with a control device (25) is coupled and wherein the control device (25) and / or the sensor (38) is designed and set up to avoid a test start-up of the motor (6) in both directions in order to determine the position of the motor (6) and to find out the correct current supply to the coils (16) depending on it. Furniture component (1) according to one of the preceding claims, wherein at least the electrically driven part of the roller unit (4) is surrounded by a housing (17) made of metal or protected in a flame-retardant manner. Furniture component (1) according to one of the preceding claims, wherein the motor (6) is operated with direct voltage and wherein the direct voltage is in particular less than or equal to 120V or less than or equal to 75V or less than or equal to 60V. Furniture component (1) according to one of the preceding claims, wherein an energy store (30) is included. Furniture component (1) according to one of the preceding claims, wherein the energy store (30) comprises rechargeable battery cells (31), the storage capacity of which is sufficient for at least one or two complete movements between the first and second positions. Furniture component (1) according to one of the preceding claims, wherein an energy supply (32) is included, which ensures a wired or wireless power supply in at least one position (7). Furniture component (1) according to one of the preceding claims, wherein at least one wired and / or wireless data interface (26) is included. Furniture component (1) according to one of the preceding claims, wherein a control device (25) is assigned or included. Furniture component (1) according to one of the preceding claims, wherein the control device (25) is connected to a network and can be controlled via the network. Furniture component (1) according to one of the preceding claims, wherein touch and / or gesture sensors (46) are included or separate gesture sensors can be evaluated in order to control the furniture component (1). Furniture component (1) according to one of the preceding claims, wherein the door leaf (18) comprises at least one core (34) and a receiving space (19) formed thereon and wherein at least one core (34) is connected to the roller unit (4) or wherein the Door leaf (18) comprises at least two cores (18a, 18b) and a receiving space (19), and wherein at least two cores (34, 35) are connected to one another and the roller unit (4) is received in the receiving space (19). Furniture component (1) according to one of the preceding claims, comprising at least two motors (6) which are synchronized with one another. Furniture component (1) according to one of the preceding claims, wherein at least a third furniture part (12) is included, wherein the second and third furniture parts (11, 12) are arranged in a planar or coplanar manner. Furniture component (1) according to one of the preceding claims, wherein the third furniture part (12) in the closed position (7) is aligned in a planar manner with the second furniture part (11) and by an adjustment mechanism (22) when it is moved into the open position (8) is transferred into a coplanar position parallel to the second furniture part (11). Furniture component (1) according to one of the preceding claims, wherein the second furniture part (11) is designed as a drawer (50). Furniture component (1) according to one of the preceding claims, wherein the second furniture part (11) is designed as a room-dividing sliding door and wherein the guide profile (3) is fixed in place. Furniture component (1) according to one of the preceding claims, wherein a roller bearing (45) for mounting the rotor is received on the stator (15). Furniture component (1) according to one of the preceding claims, wherein a circumferential flange (15b) of the stator (15) engages around the roller bearing (45) for mounting the rotor (13) and wherein from the circumferential flange (15b) coil holder (15c) to the outside protrude, on which the coils (16) are added. Furniture component (1) according to one of the two preceding claims, wherein the rotor (13) or the roller (5) is supported on the roller bearing (45). Furniture component (1) according to one of the preceding claims, wherein the composite of rotor (13) and roller (5) is formed in several parts, in particular comprises two different materials. Furniture component (1) according to one of the preceding claims, wherein the second furniture part can be moved with one hand without current. Furniture component (1) according to the preceding claim, wherein an overrunning clutch is included.

Images